Tank manufacturers publish standing losses in terms of energy lost over 24 hours, but I’d like to see how that translates into temperature changes in tanks, and in the real world at that.
Does anyone have charts of DHW tank temperature where the tank has been heated to design temperature and left standing for 24 hours or more? Would be good if you could share the size of the tank too.
This is a Sunex Fish 300l tank during my holidays last year. It wasn’t quite fully heated, but this should give you an idea. Temperature in the heating room is also included.
This is the best I have for my 180L tank.
Note that I do not trust this temperature in the slightest, its just showing the temp at one particular point in the tank. Some times a single shower can cause it to drop 20C in a matter of minutes other times 5C.
I’ve had perfectly hot showers when the tank has been showing 15C
Hi John, how big is that tank? Thanks
sorry should have said 180L
John
